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<?php
namespace Engelsystem\Middleware;
use Engelsystem\Application;
use InvalidArgumentException;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;
class RequestHandler implements MiddlewareInterface
{
use ResolvesMiddlewareTrait;
/** @var Application */
protected $container;
/**
* @param Application $container
*/
public function __construct(Application $container)
{
$this->container = $container;
}
/**
* Process an incoming server request and return a response, optionally delegating
* response creation to a handler.
*
* @param ServerRequestInterface $request
* @param RequestHandlerInterface $handler
* @return ResponseInterface
*/
public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
{
$requestHandler = $request->getAttribute('route-request-handler');
$requestHandler = $this->resolveMiddleware($requestHandler);
if ($requestHandler instanceof MiddlewareInterface) {
return $requestHandler->process($request, $handler);
}
if ($requestHandler instanceof RequestHandlerInterface) {
return $requestHandler->handle($request);
}
throw new InvalidArgumentException('Unable to process request handler of type ' . gettype($requestHandler));
}
}
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